Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Manganite from
Reaphook Hill, Martins Well (Martins Well Station), Pastoral Unincorporated Area, South Australia, Australia


Locality type:Mine
Classification
Species:Manganite
Formula:Mn3+O(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Manganite data
Locality Data:Click here to view Reaphook Hill, Martins Well (Martins Well Station), Pastoral Unincorporated Area, South Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:111189
Long-form Identifier:1:3:111189:7
GUID (UUID V4):0
References
Gallasch, H. (2026) minerals of Reaphook Hill. Mineralogical Society of South Australia Newsletter 176.
Johnston, Christopher W., Hill, Roderick J. (1978) Zinc Phosphates at Reaphook Hill, South Australia. The Mineralogical Record, 9 (1) 20-24
 
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